Finding the Fourth Proportional to 1,105.63, 1,525.71 and 633.54

Step by Step Solution

1. Step 1: Write the proportion equation
   1,105.63 : 1,525.71 = 633.54 : x
2. Step 2: Convert to fraction form
   1,105.63/1,525.71 = 633.54/x
3. Step 3: Cross multiply
   1,105.63x = 1,525.71 × 633.54
4. Step 4: Simplify right side
   1,105.63x = 966,598.31
5. Step 5: Solve for x
   x = 966,598.31/1,105.63
6. Step 6: Final answer
   x = 874.25